I must go,good-bye___now 填介词

I am good--------jogging 填介词 I must work hard ___a student 填哪个介词? 1、we must do good things ( ) our planet.填什么介词 填介词：I go to the movies ( ) once a week. I will go there () the coming Friday填介词 I can't go to the party___ you 填介词 I go to Beijing ( ) my father 填介词 "good night.i must go to bed.Don't stay up late.ok?have a go must i go now? thanks I must go good luck____you_____your english填介词 高一英语填介词的题1.Good measures must be taken to stop some factorie